diff --git a/opendata/requirements.txt b/opendata/requirements.txt
index be2790c8..07930fd2 100644
--- a/opendata/requirements.txt
+++ b/opendata/requirements.txt
@@ -1,7 +1,7 @@
 pandas==0.23.4
 numpy==1.15.3
 yamlordereddictloader==0.4.0
-PyYAML==3.13
+PyYAML==5.4
 ddlparse==1.1.1
 jours-feries-france==0.5.1
 vacances-scolaires-france==0.9.0